CN211318540U

CN211318540U - Probe module

Info

Publication number: CN211318540U
Application number: CN201921947650.1U
Authority: CN
Inventors: 江斌; 刘跃; 李�浩
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a probe module, which comprises a body, a floating plate and a probe component; the probe assembly includes: the cover plate is combined and fixed on the top of the body; the mold core is combined with the bottom surface of the cover plate and is positioned in the hollow inner cavity and comprises a plurality of needle grooves; and the blade needles are arranged in the needle grooves and correspond to the needle grooves one by one, and the shapes of the needle grooves are matched with those of the blade needles. The utility model provides a probe module is through being fixed in the design of body both sides respectively with floating plate and probe subassembly, and through the needle groove that sets up on the core and match with the blade needle for but a plurality of blade needles one-to-one install in the needle inslot, the validity of the assembly of assurance, and because the shape in needle groove is unanimous with blade needle shape, make overall structure compacter, increased the stability of testing process.

Description

Probe module

Technical Field

The utility model relates to a testing arrangement technical field, more specifically relates to a probe module.

Background

With the rapid development of modern society, various electronic products enter people's lives, and people have higher and higher requirements for the quality of electronic products, so that in the production process of electronic products, each procedure needs to detect semi-finished products, test equipment is usually adopted to be electrically connected with the products for testing at present, a connecting piece of the test equipment is a metal probe, the prior art mainly aims at Pogo pins (cylindrical pins), the contact of the Pogo pins and a liquid crystal module end is point contact in the probe with the structural form, the products are easy to be pricked, the service life of the Pogo pins is low, the resistance value of the Pogo pins is large, test signals are unstable, and other defects. At present, a flat blade needle is gradually replacing a Pogo Pin (cylindrical needle) to be widely applied, the blade needle is in line contact with a liquid crystal module end, the contact area is large, the service life is longer than that of the Pogo Pin, the resistance value of the blade needle is small, and a test signal is more stable.

However, the structure for assembling the blade needle in the prior art is complex, the cost is high, the accurate positioning of the blade needle cannot be realized, and the detection stability is poor. And the blade needle and the product can not be accurately aligned in the crimping process, and once deviation occurs, the risk of damage to the needle point of the blade needle can occur.

SUMMERY OF THE UTILITY MODEL

In view of the above, the technical problem to be solved by the present invention is to provide a probe module easy to install.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a probe module, the module comprising:

a body having a hollow interior cavity;

the floating plate is positioned at the bottom of the body; and

the probe assembly is positioned on one side of the floating plate, which is far away from the body;

the probe assembly includes:

the cover plate is combined and fixed on the top of the body;

the mold core is combined with the bottom surface of the cover plate and is positioned in the hollow inner cavity and comprises a plurality of needle grooves; and

the blade needles are arranged in the needle grooves in a one-to-one correspondence mode with the needle grooves, and the shapes of the needle grooves are matched with those of the blade needles;

the floating plate comprises a plurality of needle holes which correspond to the electric contact ends of the blade needles one to one, the floating plate is configured to float relative to the body in the extension direction of the blade needles, and the electric contact ends of the blade needles can extend out of one side surface of the floating plate, which is far away from the body, from the needle holes at the positions, close to the body, of the floating plate.

In addition, preferably, the blade needle comprises a limiting edge, a limiting piece is formed on the core, and the blade needle is limited and fixed in the needle groove of the core through the matching of the limiting piece and the limiting edge.

In addition, it is preferable that the core includes a body portion having a plurality of needle grooves, and a boss formed by a protrusion of the core body portion and located in the needle groove, the boss forming a stopper.

In addition, it is preferable that the core includes a body portion having a plurality of needle grooves, and a stopper surface formed on the body portion, the stopper surface forming the stopper.

In addition, preferably, the floating plate is fixed on the bottom surface of the body by a contour screw, an elastic member is arranged between the floating plate and the body, and the acting force direction of the elastic member is along the axial direction of the contour screw.

In addition, preferably, a positioning column and a positioning hole correspondingly matched with the positioning column are arranged between the mold core and the cover plate.

In addition, preferably, a positioning pin and a positioning pin hole correspondingly matched with the positioning pin are included between the body and the cover plate.

Furthermore, it is preferable that the floating plate is not in contact with the core when the floating plate is located at an extreme position close to the body.

In addition, preferably, the body comprises a limiting table extending inwards from the inner wall of the hollow inner cavity, and the limiting table is configured to stably fix the core between the body and the cover plate.

Furthermore, it is preferable that a side surface of the floating plate facing away from the body includes a surrounding wall surrounding the plurality of pinholes.

The utility model has the advantages as follows:

compared with the prior art, the utility model provides a probe module is through being fixed in the design of body both sides respectively with floating plate and probe subassembly, and through set up the needle groove that matches with the blade needle on the core for but a plurality of blade needles one-to-one install in the needle inslot, the validity of the assembly of assurance, and because the shape in needle groove is unanimous with blade aciculiform form, make overall structure compacter, increased the stability of test process.

In addition, one side surface that deviates from the body through at the kickboard is provided with the surrounding wall around a plurality of pinholes, can realize the prepositioning to the product at the crimping in-process, guarantees that the product is located under the blade needle, realizes that blade needle and product are accurate to counterpoint.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 shows a schematic view of an overall structure of the probe module provided by the present invention.

Fig. 2 shows an assembly view of the probe module provided by the present invention.

Fig. 3 is a schematic structural diagram of a core in a probe module provided by the present invention.

Fig. 4 shows a schematic structural diagram of a floating plate in a probe module provided by the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Receive the structural constraint for solving current probe module, be difficult for changing the problem of probe in the module, the utility model provides a probe module combines fig. 1 to 4 to show, specifically, probe module includes:

a body 1 having a hollow interior;

a floating plate 2 positioned at the bottom of the body 1; and

a probe assembly 3 positioned on the side of the floating plate 2 away from the body 1;

the probe assembly 3 includes:

a cover plate 31 combined and fixed on the top of the body 1;

a core 32 which is combined and fixed on the bottom surface of the cover plate 31 and is positioned in the hollow inner cavity and comprises a plurality of needle grooves 321; and a plurality of blade needles 33 disposed in the needle grooves 321 in one-to-one correspondence with the plurality of needle grooves 321;

the floating plate 2 comprises a pin hole 21 corresponding to the electric contact end 331 of the blade pin 33, the floating plate 2 is configured to float relative to the body 1 in the extending direction of the blade pin 33, and the electric contact end 331 of the blade pin 33 can protrude from the pin hole 21 out of one side surface of the floating plate 2 facing away from the body 1 at the position where the floating plate 2 is close to the body 1. The utility model provides a probe module is through being fixed in the design of body both sides respectively with floating plate and probe subassembly, and through the needle groove that sets up on the core and match with the blade needle for but a plurality of blade needles one-to-one install in the needle inslot, the validity of the assembly of assurance, and because the shape in needle groove is unanimous with blade needle shape, make overall structure compacter, increased the stability of testing process.

Furthermore, the blade needle 33 includes a limiting edge 332, a limiting member is formed on the core 32, and the blade needle 33 is limited and fixed in the needle groove 321 of the core 32 by the cooperation of the limiting member and the limiting edge 332. The utility model provides a probe module is through being fixed in body 1 both sides respectively with floating plate 2 and probe subassembly 3 to cooperation blade needle 33 is by the spacing design that is fixed in needle groove 321 of locating part, makes by lid 31, core 32 and blade needle 33 mutually combined the fixed probe subassembly 3 that constitutes and form an integral structure, is convenient for when certain probe damages, can carry out the whole change to the probe subassembly. When changing the probe subassembly, the assembly precision between the floating plate as probe module part and the body is not influenced, and then has guaranteed to change probe subassembly back, the probe can be direct with the pinhole one-to-one on the floating plate, need not further adjust the precision between the two, has improved the work efficiency that the probe module changed the probe to and when making things convenient for probe later stage to change and maintain, still increased test process's stability.

In an embodiment, referring to fig. 3, the core 32 includes a body portion having a plurality of needle grooves 321, and a limiting surface 322 formed on the body portion, where the limiting surface 322 forms the limiting member, so that the limiting edge 332 of the blade needle 33 can be hung on an inner side surface of the limiting surface 322, and the blade needle 33 is limited and fixed in the needle groove 321 by the limiting member, it can be understood that the limiting surface 322 includes an opening through which the electrical contact end 331 of the blade needle 33 passes, so that the electrical contact end 331 of the blade needle 33 can be protruded from the needle hole 21 out of a side surface of the floating plate 2, which is far away from the body 1, at a position where the floating plate 2 is close to the body 1.

Or in another embodiment, the blade needle comprises a limiting edge, the limiting piece is formed on the core, and the blade needle is limited and fixed in the needle groove of the core through the matching of the limiting piece and the limiting edge. Specifically, the core comprises a body part with a plurality of needle grooves and a boss which is positioned in the needle grooves and is formed by the protrusion of the body part of the core, and the boss forms a limiting part, so that a limiting edge of the blade needle can be hung on the boss, and the blade needle is limited and fixed in the needle grooves by the limiting part.

Based on the above structure, it is preferable that a positioning column and a positioning hole corresponding to the positioning column are included between the core 33 and the cover plate 31. The utility model discloses in, blade needle 33 is at first realized blade needle 33's preliminary equipment location through core 32's needle groove 321, and rethread core 32 and apron 31 are fixed, and the complete location that utilizes the mutual cooperation of the spacing limit 332 of blade needle 33 and the spacing face 322 of core 32 to realize the blade needle is fixed, core 32 with the assembly precision between core 32 and the apron 31 can be guaranteed to the reference column and the locating hole of mutually supporting between the apron 31. It can be understood that the reference column can be disposed on the cover plate or on the core, opposite to the reference column, the positioning hole can be disposed on the core or on the cover plate, and the reference column can be a separate component, so as to facilitate the replacement and assembly in the later stage, which is not limited by the present invention.

In one embodiment, the floating plate 2 is fixed on the bottom surface of the body 1 by a contour screw 4, an elastic member 5 is included between the floating plate 2 and the body 1, and the acting force direction of the elastic member 5 is along the axial direction of the contour screw 4. The equal-height screws 4 comprise screw connection parts which are positioned at the head end parts and are used for connecting and fixing the floating plate 2 on the body 1 and guide parts which are positioned at the rear ends of the screw connection parts and provide guide for floating of the floating plate 2. In addition, the elastic member 5 may be a spring or other elastic element with elastic restoring capability, which is not limited to this, when the elastic member 5 is a spring, the spring may be configured between the floating plate 2 and the bottom of the body 1, or in order to ensure that the spring is stressed uniformly and does not distort, the spring may also be sleeved on the equal-height screws to maintain the floating stability of the floating plate.

As shown in fig. 4, the floating plate 2 of the present invention further includes a surrounding wall 22 surrounding the plurality of pinholes 21 on a surface of one side of the body 1. When the probe module is fixed on the detection structure in a combined manner to crimp and conduct the B2B and the FPC at the liquid crystal module end, the surrounding wall 22 can provide a prepositioning effect to ensure that the product is positioned under the blade pins, so that the electrical contact ends of the blade pins and the electrical connection ends of the product to be detected can be crimped and connected accurately and stably one-to-one.

In one embodiment, as shown in fig. 2, a positioning pin 6 and a positioning pin hole correspondingly matched with the positioning pin 6 are included between the body 1 and the cover plate 31 to ensure the assembly accuracy between the body and the whole structure of the probe assembly.

With reference to the structure shown in the figure, in a preferred embodiment, the cover plate 31 includes a positioning pin hole 311 corresponding to a head end 333 of the blade pin 33 far away from the electrical connection end 331, so as to further ensure the positioning accuracy of the blade pin 33. In addition, in order to avoid the blade needle from shaking due to collision between the floating plate and the core and influence the butting precision of the blade needle, it is preferable that the floating plate 2 is not in contact with the core 32 when the floating plate 2 is located at an extreme position close to the body 1.

In practical application, the utility model provides a probe module combination is fixed structurally for B2B and FPC to the liquid crystal module end carry out the crimping and detect, the kickboard is the state of popping open during initial condition, and the kickboard is located the position of keeping away from the body promptly, and the electric link of blade needle this moment is hidden in the kickboard, plays the protection to the blade needle. During the detection, this probe module removes crimping B2B or FPC, and the kickboard atress retracts, leans on to the body, and the electric connection end of blade needle is exposed by the side surface of keeping away from the body of kickboard, and with B2B or FPC contact, realize switching on of signal, accomplish the detection through other equipment afterwards.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. A probe module, the module comprising:

a body having a hollow interior cavity;

the floating plate is positioned at the bottom of the body; and

the probe assembly includes:

the cover plate is combined and fixed on the top of the body;

2. The probe module as claimed in claim 1, wherein the blade pin includes a limiting edge, and the core is formed with a limiting member, and the blade pin is limited and fixed in the pin slot of the core by the cooperation of the limiting member and the limiting edge.

3. The probe module of claim 2, wherein the insert includes a body portion having a plurality of pin grooves, and a boss formed by a protrusion of the body portion of the insert in the pin grooves, the boss forming a stop.

4. The probe module of claim 2, wherein the insert comprises a body portion having a plurality of pin slots, and a retaining surface formed on the body portion, the retaining surface forming the retainer.

5. The probe module of claim 1, wherein the floating plate is fixed on the bottom surface of the body by a set screw, and an elastic member is disposed between the floating plate and the body, and the direction of the elastic member is along the axial direction of the set screw.

6. The probe module of claim 1, wherein a positioning post and a positioning hole corresponding to the positioning post are disposed between the core and the cover plate.

7. The probe module of claim 1, wherein the body and the cover plate include a positioning pin and a positioning pin hole corresponding to the positioning pin.

8. The probe module of claim 1, wherein the floating plate is not in contact with the core when the floating plate is in the extreme position adjacent to the body.

9. The probe module of claim 1, wherein the body includes a retention ledge extending inwardly from an inner wall of the hollow interior, the retention ledge configured to securely hold a core between the body and the cover plate.

10. The probe module of claim 1, wherein the surface of the floating plate facing away from the body comprises a surrounding wall surrounding the pin holes.